Children's toilet training device with differentiating means
Childs counting book
Chinese character coding method using five stroke codes and doub
Chore buddy
Choreographed athletic movement to music
Christian learning tool
Chronic obstructive pulmonary disease simulator
Circular, piece-matching math educational aid
Classification language and method
Classroom demonstration calculator
Classroom instructional tool
Claymore training device
Clinical and/or surgical training apparatus
Clinical simulation workstation
Clock for educational purposes
Clock teaching aid
Closed finger painting device
Closed loop ski simulation and instructional system
Cloth chart for learning characters
Clothes for infant education